Chroot installs and some upgrades from Fedora 8 end up without
event-compat-sysv. Attempting to boot a system without event-compat-sysv causes
bootup to get stuck shortly after switchroot.
Should initscripts (or something else) require event-compat-sysv? We clearly
cannot operate without it yet.

I suppose it could, however:
- it's pulled in on upgrades because it obsoletes event-compat-sysv
- it's pulled in on the most minimal installs as a mandatory package in the core
comps group
Ergo, I'm not seeing how you'd end up without it other than by manual removal.